Update PeerReady during relocate only post peer reports a ready state, it remains true initially and then moves to false currently

[ShyamsundarR]

The DRPC reconciler unconditionally moves the observed generation of PeerReady to the current generation, which causes it to report PeerReady as true from the older generation:

ramen/controllers/drplacementcontrol_controller.go

Lines 1012 to 1017 in 6924acd

	drpc.Status.LastUpdateTime = metav1.Now()
	for i, condition := range drpc.Status.Conditions {
	if condition.ObservedGeneration != drpc.Generation {
	drpc.Status.Conditions[i].ObservedGeneration = drpc.Generation
	}
	}

This is why when Available is still false and the action is in progress, initially the status for PeerReady is moved to true for the current generation.

This needs a fix in ramen drpc reconciler.